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DENIUS [597]
3 years ago
14

Mr. McDowell invested $14,000 in equipment to print yearbooks for Ardrey Kell High School. Each yearbook costs $7 to print and s

ells for $35. How many yearbooks must he sell before he breaks even?
Mathematics
1 answer:
Feliz [49]3 years ago
8 0
14000+7x=35x (x being the number of books) solve for x and you have your answer. 14000=35x-7x=28x therefore x=14000/28=500 so he needs to sell 500 books before he breaks even.
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3 years ago
Solve the system of equations. 3x – 4y = 8 18x – 5y = 10 x= y =<br>​
Zepler [3.9K]

Answer:

Step-by-step explanation:

Solution by substitution method

3x-4y=8

and 18x-5y=10

Suppose,

3x-4y=8→(1)

and 18x-5y=10→(2)

Taking equation (1), we have

3x-4y=8

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⇒x=( 4y+8)/ 3  →(3)

Putting x= (4y+8 )/3  in equation (2), we get

18x-5y=10

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⇒24y+48-5y=10

⇒19y+48=10

⇒19y=10-48

⇒19y= -38

⇒y=- 38 /19

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Now, Putting y=-2 in equation (3), we get

x=4y+8

x= (4(-2)+8) /3

 ⇒x= (-8+8)/ 3

 ⇒x= 0/ 3

 

⇒x=0

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5 0
3 years ago
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Wewaii [24]
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4 0
3 years ago
Read 2 more answers
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serg [7]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Guys help me this is hard​
Leokris [45]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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